Finding the Fourth Proportional to 316,359.65, 436,576.35 and 173,119.70
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Solution
The fourth proportional to 316,359.65, 436,576.35 and 173,119.70 is: 238,905.20
Step by Step Solution
- Step 1: Write the proportion equation
316,359.65 : 436,576.35 = 173,119.70 : x - Step 2: Convert to fraction form
316,359.65/436,576.35 = 173,119.70/x - Step 3: Cross multiply
316,359.65x = 436,576.35 × 173,119.70 - Step 4: Simplify right side
316,359.65x = 75,579,966,739.10 - Step 5: Solve for x
x = 75,579,966,739.10/316,359.65 - Step 6: Final answer
x = 238,905.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.